Preferred test during symptomatic periods for acute intermittent porphyria, hereditary coproporphyria, and variegate porphyria when the specimen will be received at Mayo Medical Laboratories within 72 hours of collection (if it will be longer, PQNU / Porphyrins, Quantitative, 24 Hour, Urine should be ordered)

Preferred test during symptomatic periods for acute intermittent porphyria (AIP), hereditary coproporphyria (HCP), and variegate porphyria (VP). The random urine collection for this test allows for the diagnosis to be established and treatment to be initiated quickly. However, this test should only be ordered when the specimen will be received at MML within 72 hours of collection. If it will be longer, PQNU / Porphyrins, Quantitative, 24 Hour, Urine should be ordered.

Testing includes porphobilinogen which is useful in the evaluation of the acute porphyrias.